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etherdevice.h: Add ether_addr_equal

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Add a boolean function to check if 2 ethernet addresses
are the same.

This is to avoid any confusion about compare_ether_addr
returning an unsigned, and not being able to use the
compare_ether_addr function for sorting ala memcmp.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joe Perches
2012-05-08 18:56:45 +00:00
committed by David S. Miller
parent a49d1a905e
commit a599b0f54d
1 changed files with 12 additions and 0 deletions
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12
include/linux/etherdevice.h
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@@ -171,6 +171,18 @@ static inline unsigned compare_ether_addr(const u8 *addr1, const u8 *addr2)
return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) != 0; return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) != 0;
} }
/**
* ether_addr_equal - Compare two Ethernet addresses
* @addr1: Pointer to a six-byte array containing the Ethernet address
* @addr2: Pointer other six-byte array containing the Ethernet address
*
* Compare two ethernet addresses, returns true if equal
*/
static inline bool ether_addr_equal(const u8 *addr1, const u8 *addr2)
{
return !compare_ether_addr(addr1, addr2);
}
static inline unsigned long zap_last_2bytes(unsigned long value) static inline unsigned long zap_last_2bytes(unsigned long value)
{ {
#ifdef __BIG_ENDIAN #ifdef __BIG_ENDIAN